MTL - The Divine Martial Stars - ~ 1436, strong too much

High-school student Koremitsu Akagi finds himself attending the funeral of Hikaru Mikado, who had died in an accident during Golden Week. He’s not sure why he’s there, as he only exchanged a few words with Hikaru at school. However, Hikaru doesn’t seem to be completely gone from the world, as he comes back as a ghost in order to fulfill a promise to Aoi Saotome, his fiancée. Since Koremitsu is the only one who can see him, he asks him to carry out his promise in his place.

Complying with his request, Koremitsu tries to fulfill Hikaru’s promises to the rest of his “girlfriends”, helping them overcome past misunderstandings and repair broken relationships.

I am Ye Qing. Lucky I found a [Monster Factory] application.

This bunch of super strong monsters are individually comparable to over 100 human beings, and they bring all kinds of skills!

Efficiency? With the skill processing speed +300, you still want to compete?

Precision? *cough, cough* Bring me that legendary dial caliper, let’s show them what absolute precision really mean.

Ye Qing: When, us, men want to be successful, we pull out our wallets.

Monsters: Don’t play those malice games with us. The creation of ultimate machinery is our love and life. These impenetrable bodies are our tools of the trade.

A 20 meter tall, overly buffed, savage looking monsters hold on to a ultimate cutting machine and yelled at the sky: “I am not targeting anyone specifically! Rather I am telling you all that, everything, in front of me and my tools are, nothing, but TRASH!”

- Description from Novelupdates

In the back of the forest lives Allen, the antisocial wizard. He is feared by the people around him and called the “Demon Lord”.One day, while living out his life as a hermit, he finds a young girl named Charlotte who collapsed. Although innocent, she was accused of evil wrongdoings, had her engagement broken and was forced to flee her country.Upon hearing that, Allen recalled the bitter experience of being betrayed by a party he once believed to be his companions. Hearing the story of the 17 year old’s exploitation, Allen decides, “I’ll let her live in my mansion, and I’ll teach her all sorts of bad things…”

Haruka, consulted by a friend who ran into a ghost at school, goes to the Movie Research Circle to see a man with mysterious powers. However, the person who meets her there is an affected young man with terrible bed hair and sleepy eyes. What does Haruka consult him about? A confinement and murder case at a women’s university, a false suicide case… The great detective who can see the spirits of the dead, Saitou Yakumo, takes these cases on in this astoundingly high-speed spiritual mystery!